/// <summary>
/// Validates the constraint against the <see cref="ILineItemContainer"/>
/// </summary>
/// <param name="value">
/// The value to object to which the constraint is to be applied.
/// </param>
/// <param name="customer">
/// The <see cref="ICustomerBase"/>.
/// </param>
/// <returns>
/// The <see cref="Attempt{ILineItemContainer}"/> indicating whether or not the constraint can be enforced.
/// </returns>
public override Attempt <ILineItemContainer> TryApply(ILineItemContainer value, ICustomerBase customer)
{
var visitor = new NumericalValueFilterConstraintVisitor(this.Price, Operator, "price");
value.Items.Accept(visitor);
return(visitor.FilteredLineItems.Any(x => x.LineItemType == LineItemType.Product)
? this.Success(CreateNewLineContainer(visitor.FilteredLineItems))
: this.Fail(value, "No items qualify. Quantity filter removes all items"));
}
/// <summary>
/// Validates the constraint against the <see cref="ILineItemContainer"/>
/// </summary>
/// <param name="value">
/// The value to object to which the constraint is to be applied.
/// </param>
/// <param name="customer">
/// The <see cref="ICustomerBase"/>.
/// </param>
/// <returns>
/// The <see cref="Attempt{ILineItemContainer}"/> indicating whether or not the constraint can be enforced.
/// </returns>
public override Attempt <ILineItemContainer> TryApply(ILineItemContainer value, ICustomerBase customer)
{
var visitor = new NumericalValueFilterConstraintVisitor(Quantity, Operator, "quantity");
value.Items.Accept(visitor);
return(visitor.FilteredLineItems.Any(x => x.LineItemType == LineItemType.Product)
? this.Success(CreateNewLineContainer(visitor.FilteredLineItems))
: this.Fail(value, "No items qualify. Resulting collection would be empty."));
}
/// <summary>
/// Validates the constraint against the <see cref="ILineItemContainer"/>
/// </summary>
/// <param name="value">
/// The value to object to which the constraint is to be applied.
/// </param>
/// <param name="customer">
/// The <see cref="ICustomerBase"/>.
/// </param>
/// <returns>
/// The <see cref="Attempt{ILineItemContainer}"/> indicating whether or not the constraint can be enforced.
/// </returns>
public override Attempt<ILineItemContainer> TryApply(ILineItemContainer value, ICustomerBase customer)
{
var visitor = new NumericalValueFilterConstraintVisitor(Quantity, Operator, "quantity");
value.Items.Accept(visitor);
return visitor.FilteredLineItems.Any(x => x.LineItemType == LineItemType.Product)
? this.Success(CreateNewLineContainer(visitor.FilteredLineItems))
: this.Fail(value, "No items qualify. Resulting collection would be empty.");
}
/// <summary>
/// Validates the constraint against the <see cref="ILineItemContainer"/>
/// </summary>
/// <param name="value">
/// The value to object to which the constraint is to be applied.
/// </param>
/// <param name="customer">
/// The <see cref="ICustomerBase"/>.
/// </param>
/// <returns>
/// The <see cref="Attempt{ILineItemContainer}"/> indicating whether or not the constraint can be enforced.
/// </returns>
public override Attempt<ILineItemContainer> TryApply(ILineItemContainer value, ICustomerBase customer)
{
var visitor = new NumericalValueFilterConstraintVisitor(this.Price, Operator, "price");
value.Items.Accept(visitor);
return visitor.FilteredLineItems.Any(x => x.LineItemType == LineItemType.Product)
? this.Success(CreateNewLineContainer(visitor.FilteredLineItems))
: this.Fail(value, "No items qualify. Quantity filter removes all items");
}